Question

HELP ASAP!!! WILL MARK BRAINLIEST

Answer 1

Answer:

• 50x⁴ - 20x² + 1 = 0

1. Quadratic form

• 50(x²)² - 20x² + 1 = 0

2. U is

• x² = u

3. U- substitution

• 50u² - 20u + 1 = 0

4. Find the discriminant and identify roots

• d = (-20)² - 4*1*50 = 200
• u = (20 ± √200)/100
• u = (2 ± √2)/10

Solve for x

• x² = (2 ± √2)/10
• x = ± √((2 ± √2)/10), four roots